Thermostat indicator



July 22, 1930. H. EQRIDER 1,771,098

THERMOSTAT INDICATOR Original Filed Oct. 7, 1925 INVNTOR M ATroRNE Vthe indicator pinion and is actuated Patented July 22, v19301 UNITE HERBERT E. RIDER, OF ITEl/J YORK, It'. Y.

L. HALL, or NEW Yoan, MAINE minet reine ASSGNR OF rnnnnosfrar rnnronfroit l Application inea october r,

lron or oven, etc., by a single element which also ser-ves to transmit the heat from the iron to the indicator to operate the same, and also `permits the indicator to be attached and detached quickly when desired.

Referring to the drawings which iorm a part of this speciiication: l

Fig., l, is an elevational view, shown partly in section, oi a sad-iromwith an indicator:

thereon. y Y

Fig. 2, is a plan view of a sad-iron on an enlarged Scale relative Vto that oFigure l, showing a sad-iron with bodying my invention mounted thereon, the top plate or" the indicator being broken away to disclose a plan view ofthe mechanism thereof. Y i

Fig. 3, is a longitudinalsectional view oi mechanism'` A, indicates a flat-iron of the electricallyheated type, on which is mounted an indicator comprising a base-plate B and casing B mountedthereon and enclosing the indicator mechanism.

A thermostat member C is firmly held at one end thereof to the base-plate B by lclamping it a slot D, formed in the base-plate. All of the moving` parts except the 'thermostat, are mounted onthe casing` and are removable therewith from the base-plate. The under side of the casing is cut away B2 to reduce the weight. i

The moving-parts comprise the thermostat C, a rack-trame E, apinion F and indicatorhand G, which is directly connected to the thereby, so that vthere is practically but three moving1 parts inthe an indicator emwith. the hand p ointing ieee, serial ne. 60,997. Renewed iaeyeigiaao.`

device. A stud ll is riveted to the top of the casing and carries the pinion F and hand Gr in freely movable relation thereto. A rackfE is formed onthe arc-shaped end ot the trame lll, and engages the pinion il. 'A stud Ilis secured to the lower flange B3 of the casing and supports the rack-trame E in freely movable relation theretoi the. top ot the casing to expose thetree end otthe hand G which moves Irom one side of the casing` to the other side to indicate the changing temperature of the sad-iron, as will be readily understood. 1 f

rllhe rack-trame E is provided with tw depending pins li`-l respectively, spaced trom'eacn other to provide a slot having curved surfacesagainst which the free end ot the'thermostat C presses as it changes itsV form,` moves the rack-frame to operate the hand of the indicator. By arranging the rackrame, pinion and handas illustrated, avery small movement yof the tree end oii'the thermostatserves4 to move the tree end of the hand "i and the Billiger7 point markings on the dial L of the device.` I y The base-plate B is provided with twovertical slots lillll respectively, into which downwardly-extending edge portions N-N espectively fit in sliding. relation thereto and areheld therein by Jriction, which serves to hold the casing tothe base-plate. i The base-plate B is' ,L

1s bitur'cated at BQ. ai screw P, extends into ILhe metal body of the sad-iron base-plate firmly thereto in removable relation therewith and also serves to conduct the heat from the base ot the iron to the baseplate an d thermostat.

will also be observed that the casing can be instantly removed from the base-plate ,for inspection orcleaning, without removing the base-plate from the iron. Y

V/'hen the iron is cold, the indicator is setV to and as the iron is gradually heated, the thermostat gradually assumes cnn-rounrn fronnwann n. Y., Anzo cnn-HALF ro Mann nenanorronrteivn,

A slot J istormed in' due to changes in temperature,V and or aY considerabledistance, thereby givy mg a large rangebetween the Low point provided with an eX-, tension which extends beyond the casingV andjv and holds the row7 on the dial,

a curved Vform and moves the mechanism so that the pointer gradually moves toward the Danger point, and thus the relative temperature is indicated by the position ot the hand, as will readily be understood.

Having thus described my invention, l claim as new:

1. An indicator comprising a base-plate having one end biturcated, means extending through Said bitlhcatod port-ion tor holding I' i I o. 1lt tilt out lah-otite to t tatoo (ooh 1h 4.1u conducting relation thereto, a thermostat connected to said base-plate at one end in heat conducting relation therewith, a casing l5 supported by the base-plate having a slot therein, an indicator hand, one end of which is visable through said slot, and gearing carried by the casing and connecting said hand and thermostat in operative relation.

2. An indicator comprising a base-plate having one end biturcated, means extending through said bifurcated portion for holding said base-plate to a heating device in heat conducting relation thereto, a. thermostat connected to said base-plate at one end in heat conducting relation therewith, a casing supported by the base-plate in freely remov-V able relation thereto, having` a slot therein, an indicator hand, one end of which is visible through said slot, and gearing carried by the casing and connecting said hand and thermostat in operative relation.

3. An indicator comprising a base-plate having slots therein for supporting a casing and having one end biturcated, means eX- tending through said bifurcated portion for holding said base-plate to a heating device in heat conducting relation thereto, a therniostat connected to said base-plate at one end in heat conducting relation therewith, a casing supported on the base-plate having a slot therein, and having` edge portions which fit in said slots formed in the base-plate, and gearing to actuate the hand carried by the casing and connecting the tree end of said thermostat with said hand, all of the moving parts being carried by the casing and removable therewith from the base-plate.

Signed at New York city, in the county of New York and State of New York this 17th day of September, A. D. 1925.

HERBERT E. RIDER. 

